Rüth's other dub credits, largely in animation, include the German voice of Winnie the Pooh in the later films, Grandpa and Barney Gumble on The Simpsons, Mr. Garrison in South Park, various parts in the Asterix features, and two of John Ratzenberger's roles in Pixar films: Hamm in the Toy Story movies and P. T. Flea in A Bug's Life.